Added -q quiet mode to hide "already running" error. Also display short session names under list mode.
Added -q quiet mode to hide "already running" error. Also display short
session names under list mode.

princeofdarkness76/sial.org-scripts,princeofdarkness76/sial.org-scripts,princeofdarkness76/sial.org-scripts,thrig/scripts,thrig/scripts,princeofdarkness76/sial.org-scripts,thrig/scripts,thrig/scripts,thrig/scripts,princeofdarkness76/sial.org-scripts,thrig/scripts